{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137609",
    "entityType": "User",
    "nonce": "0x9fd661619fda14266e85062f3fa01357b13a0c6fcad1e5ac63dfba3ee80fd3a9",
    "signature": "0x86055a77cd423901650f88c14e7ff87a90f497a63750562a8d7d64940a59bbba5f976a459d9ffa23414309fa4b8c24ba1ac2a04236bfd508c96cad73cab757dd1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}